Steam boiler



@cit, 30,11923. L WZJME A. L. BRUEJGGEMAN STEAM BOILER Filed April 14, 192i y WVENTOR.

Q Mm.

) A TTORNEY.

' Patented @dh' 3Q, 319233,

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v reservoir will All ' ceedingly free and ample,-

circulation tubes are in the is further intended to construct, arrange,

and. the water of circulation will pass rennet entree stares arentientree, MET In ERUEGGWAN, 03E NEWARK, JERSEY;

Application filed April M, 1921. Serial Ito. 461,333.

In general my invention is intended to maltea better, simpler, safer, and more efiic-ient holler of the water tube class than has heretofore been produced.

Reference is to be had to the accompany-. mg" drawings forming a part of this specification, in which similar reference char acters indicate corresponding parts in the v1ew.-

The figure is a central vertical section of the boiler showing my improvements.

The drawing is by way of example, and shows a single boiler element'which will be described in detail, and it will be understood that a battery of these elements can be comb ned to produce larger steam units if des1red.

The generating part of the boiler comprisesessentially the upper and lower drum's A and B, which are spaced apart and con-=- nected by a bank of tubes C, which are inclined and exposed to the hottest gases of combustion. The upper art of the drum A serves as a steam cham er, and the lower part carries-hot water. W

The water is sup lied to the drums A and ll trom a vertical y arranged reservoir D which is reterably cylindrical, and which is divide by the spaced apart tube plates H into three principal compartments,-the upper T serving as a steam dome, the middle portion M as a water reservoir, and the lower chamber lU connecting through the nipple G with the lower drum B. The drum A connects by horizontal ipes F which are arranged below the water ine with the lower part of the steam drum 1?, and the upper part of the drum A, or steam chamber, connects by the pipes E with the steam carrying part ofthe chamber P. Tubes K extend from the upper plate l-l through the cor responding lower late, and serve to carry thewater of cireu ation.

The middle chamber M of the reservoir D has an outlet opening J extending from the lee upper plate H into the steam drum, and arranged around this in step fashion are plates U which as the hot water rises through the pipe 3 and overflows the plates, serve tov brealr up the hot water, and tree the air we which mingles with the steam.

lt willbe seen from the foregoing descriptime that the circulation is as follows. From the drum A, the water passes through the pipes F to the lower part of the steam drum no To all whom it may concern."

Be it known that I, ALBERT LBnmreea- MAN, a citizen of the United States, and a resident of the city of Newark, county of Essex, and State of New Jersey, have invented a new and useful Improvement in Steam Boilers, of which the following is a full, clear, and exact description.

My invention relates to improvements in steam boilers of thewater tube variety, and the general object of my invention is to make a boiler of this -class which has a hi her efiiciency than boilers hitherto made. ore particularly my invention is intended to produce a boiler in which the enerating and ottest part of the furnace gases, and in which a storage reservoir is arranged and connects with t e drums of the generating part of the boiler, so that there is an unusually large factor of safety, and the storage reservoir will supply water for circulation and steam generation in such ample'capacity that there will be no danger of burning out the tubes and destroying the boiler. My invention and connect this storage reservoir with the generating parts of the boiler, so that the feed water will be supplied to the reservoir in its coolest parts, the upper part of the reservoir can be utilized as a steam dome,

through the main chamber of thereservoir, while the gases of combustion will pass around it, and so that water in the storage be heated and delivered at the boiling point to the generating parts of the boiler My invention is further intended to arrange the preheating parts of the water in such a way that the lime and other scale forming materials will be separated by heat and collected in a wayto be readily blown ed, and also to arrange the reservoir so that the water, as it is. fed to the generating parts of the boiler, will be broken up under eat, and the air freed and mingled with the Steamand thus the air will pass out and not have any injurious and corrosive action on the boiler parts.

My invention is further intended to produce a boiler in which the circulation is exand in which the water as it circulates will be exposed to the hot gases of combustion of the furnace, so as to practically absorb all the heat thereof,

P, thence downward throu h the tubes K, thence through the nipple to the drum B and thence through the generating tubes d back to the drum A. Thus a very easy and natural flow of circulation is provided, and it will be observed that the hotwater passing downward through the tubes K will serve to heat the water in the storage reservoir D, and this water will also be heated by the flue gases which pass around the outside of the reservoir.

The boiler setting can be of any approved or conventional type, but I have shown an arrangement which lends itself to the easy generation of steam, and in which the gases of combustionare utilized to the best advantage. The furnace 10 has an upward extending inclined flue 11 delivering to the chamber 12 in which is the super heater 13. I have shown a conventional super-heater, and any suitable type can be used. In the flue 11 and dividing the bank of generating tubes C, is a diaphragm or baffle 14 which causes the hot gases to pass up on one side of the baflle and down on the other, as indicated by the arrows. 'From the back of the furnace the hot gases pass upward in the flue 15 in which the reservoir D is located, over the vertical baffle 16 shown by dotted lines in the drawing, and thence down and out through the discharge flue 17.

The reservoir D is provided with a vertically arranged supply pipe 18 for feed water which connects with a valve controlled water supply pipe 19, and leading from the lower part of the chamber M and out through the boiler setting, is a valve controlled blow-off pipe 20. By this arrangement it will be seen that the cold water enters the coldest part of the boiler, and that it rises in the reservoir and is heated as already described, and this heating at rather high temperature, serves to separate and deposit the lime and scale making materials which collect'on the lower plates H, and can be blown off when desired through the pipe 20. It will be noticed that the water will rise hot through the pipe J, be broken up over the plates 0, and the air separated as already described, and it will be seen that the flow of the intake water in the chamber B is in one direction, while the flow of circulating water is in the opposite direction, and further that the water as it passes to the boiler, and to the hottest part thereof, follows the flow of combustion gases, but in the reverse direc A tion, so that these gases are utilized to the best possible advantage in the generation of steam.

It will also be seen that ample provision is made in the storage reservoir D for keeping the generating-parts of the boiler well supplied ,iand-thus a larger safety factor is provided which even if the fireman is negligent, will prevent any accident to the boiler.

arrears It will be further seen that the invention provides a very simple and eficient boiler construction, and that as above stated, the units shown can be multiplied into a battery of any desired number of units, if a larger steam plant is desired.

I claim 1. A steam boiler comprising upper and lower drums, a bank of tubes connecting said drums, and a reservoir having a steam dome at the top, a storage compartment beneath it, and a bottom compartment beneath the storage compartment, tubes connecting the upper and lower compartments of the reservoir, water tubes connecting the upper drum and the steam dome below the water level, tubes connecting the upper part of the' upper drum with the steam dome, and a connection between the lower compartment of the reservoir and the lower drum..

2. A steam boiler comprising a generating part consisting of upper and lower drums spaced apart, and a bank of tubes connecting the drums, said tubes being arranged in the up-draft part of the furnace, a separate down-draft flue connecting with the updraft partof the furnace, a storage reservoir contained in the down-draft and with its upper and lower parts connecting with the aforesaid drums, and circulation pipes also connected with the drums and passing through the storage part of the reservoir.

3. A steam boiler comprising upper and lower drums spaced apart and connected by generating tubes, a reservoir connected with both drums and provided for circulation and a feed water supply, said storage reservoir having a steam dome at the top, a vertically arranged pipe extending from the reservoir into the steam dome, and means for breaking up the water and freeing the air as it overflows said ipe.

4. A steam boiler comprising a generating portion consisting of spaced apart drums and generating tubes connecting them, a storage reservoir having a steam dome at the top, and a storage portion in the middle part thereof, water connections between the upper and lower parts of the reservoir and the upper and lower drums, circulation pipes extending through the storage part of the reservoir,

and a pipe leading from the upper part of the storage chamber of the reservoir to the steam dome.

5. A steam boiler comprising a generating portion having upper and lower drums spaced apart'and generating tubes connecting them, a reservoir having upper and lower chambers connected with the upper and lower drums and an intermediate water storage chamber, means for heating .thei Water in the storage chamber, and a blowofi pipe opening from the lower part of said storage chamber.

vertically -culation tubes extending through the middle emma 6. A. steam boiler comprising a generating portion consisting of upper and lower drums spaced apart and generating tubes connecting them, a storage reservoir having upper and lower chambers connected with the upper and lower drums and an intermediate chamber for the storage of a water supply, circulation pipes connecting the upper and lower chambers of the reservoir and serving to heat the water in said reservoir, and a blow-ofl pipe opening from the lower part of the storage chamber of the reservoir.

7. A steam boiler comprising upper and lower drums spaced apart and connected by generating, tubes, a storage reservoir having an upper steam chamber, a lower chamber, and an intermediate water storage chamber, upper and lower chambers havlng connections with the upper and lower drums, ciror storage chamber of the reservoir, a feed pipe extending from the upper part of the reservoir into the steam dome, and a water supply pipe discharging into the lower portion of the Water chamber of the reservolr.

8. A steam boiler comprisin a generating portion having upper and lo spaced apart and connected by generating tubes and exposed to the hottest spaces of wer drums the boiler furnace, a vertically arranged storage reservoir supported in a flue of the furnace and having upper and lower chambers connected with the aforesaid upper and lower drums, and a middle chamber for the storage of water, a water supply pipe discharging into the middle chamber of the reservoir, circulation tubes connecting the upper and lower chambers of the reservoir, and a pipe leading from the storage chamber of the reservoir into the steam'dome thereof.

ALBERT L. BRUEGGEMAN.

Witnesses:

AnoLrH H. DAVIDS, DANIEL G. MCMDLLAN. 

